JPS6353499A - Method of processing radioactive waste liquor - Google Patents
Method of processing radioactive waste liquorInfo
- Publication number
- JPS6353499A JPS6353499A JP19793986A JP19793986A JPS6353499A JP S6353499 A JPS6353499 A JP S6353499A JP 19793986 A JP19793986 A JP 19793986A JP 19793986 A JP19793986 A JP 19793986A JP S6353499 A JPS6353499 A JP S6353499A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- recovery rate
- reverse osmosis
- properties
- radioactive waste
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 21
- 239000002901 radioactive waste Substances 0.000 title claims description 9
- 239000007788 liquid Substances 0.000 claims description 72
- 238000011084 recovery Methods 0.000 claims description 30
- 238000001223 reverse osmosis Methods 0.000 claims description 22
- 239000012528 membrane Substances 0.000 claims description 13
- 239000012141 concentrate Substances 0.000 claims description 2
- 230000008859 change Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 206010011224 Cough Diseases 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000006193 liquid solution Substances 0.000 description 1
- 239000002925 low-level radioactive waste Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000011022 operating instruction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 235000009518 sodium iodide Nutrition 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
発明の目的
［産業上の利用分野］
本発明は、逆浸透法を用いた放射性廃液の処理方法の改
良に関する。DETAILED DESCRIPTION OF THE INVENTION Object of the Invention [Field of Industrial Application] The present invention relates to an improvement in a method for treating radioactive waste liquid using reverse osmosis.
［従来の技（トｉ］
原子力発電所や咳燃料再牛速理工場から発生する中低レ
ベルの放射性廃液の退埋手段のひとつとして、廃液を逆
浸透膜装置に供給し、供、給液を処理液と濃縮液とに分
離し、処理液を放出よたは再利用し、濃縮液は回収して
同化処理等に送る技術がある。[Conventional technique (i) As one of the methods for burying medium- to low-level radioactive waste fluid generated from nuclear power plants and cough fuel factories, one method is to supply the waste fluid to a reverse osmosis membrane device, There is a technology in which the treated liquid is separated into a treated liquid and a concentrated liquid, the treated liquid is released or reused, and the concentrated liquid is recovered and sent to an assimilation process or the like.
これを実施する従来の逆浸透膜装置では、処理液ライン
に設けた流量計の測定値を流量調節ｔ１へ入力し、その
測定（直が一定になるように濃縮液の流量をｔｌ制御す
る方法か、または操作圧力を測定し、その圧力を刊■す
る方法がとられている。In a conventional reverse osmosis membrane device that implements this, the measured value of a flow meter installed in the processing liquid line is input to the flow rate adjustment t1, and the flow rate of the concentrated liquid is controlled by t1 so that the measured value (direction) is constant. Alternatively, the operating pressure is measured and the pressure is published.
処理液を河川や海洋に放出するには、処理液の性状が法
令で現ｍ１１された条件を満たすようにしなければなら
ないことはもちろんでおる。 従来の処理方法では、供
給液の性状が変化すると処理液の性状も変化してしまう
。 従って、常に規制に合致できるようにするためには
、運転条件を予め大きく安全サイドにとらなければなら
ない。 すなわち、供給液の濃度が最も高い場合でも処
理液の性状が所定のレベルを超えないように配慮して、
運転する必要がある。 当然に逆浸透装置は大容量のも
のが要求され、建設費、運転費のどちらも高み、経済的
には不利となる。Of course, in order to discharge the treatment liquid into rivers or the ocean, the properties of the treatment liquid must meet the conditions currently stipulated by law. In conventional processing methods, when the properties of the supply liquid change, the properties of the processing liquid also change. Therefore, in order to always meet regulations, operating conditions must be set largely on the safe side. In other words, care is taken to ensure that the properties of the processing liquid do not exceed a predetermined level even when the concentration of the supplied liquid is at its highest.
I need to drive. Naturally, reverse osmosis equipment is required to have a large capacity, and both construction and operating costs are high, which is economically disadvantageous.
［発明が解決しようとする問題点］
本発明の目的は、上記した問題を解消し、放射性廃液の
処理を過度に安全側に片寄らせず、しかし安全上必要な
限界を超えないことは確保しつつ、廃液の斗状の変化に
追従して経済的に有利に実施できる、逆浸透法を利用し
た処理方法を提供することにある。[Problems to be Solved by the Invention] The purpose of the present invention is to solve the above-mentioned problems and to ensure that the treatment of radioactive waste liquid is not excessively biased toward the safe side, but does not exceed the limits necessary for safety. At the same time, it is an object of the present invention to provide a treatment method using reverse osmosis that can be carried out economically and advantageously by following the funnel-shaped changes in waste liquid.
発明の構成
［問題点を解決するための手段］
図面を参照して説明すれば、本発明の放射性廃液の処理
方法は、第１図に示すように、放射性廃液を高圧ポンプ
Ｐにより逆浸透膜装置Ｒ１０に供給して、供給液Ｆを処
理液ＰおＪ：び濃縮液Ｂに分離し、処理液Ｐを放出また
は再刊用し、濃縮液Ｂを回収して同化処理等する処理方
法において、供給液のラインおよび（または）処理液の
ラインに溶液の性状を測定する手段ＣＴｆ、ＣＴ、を設
（プるとともに、濃、縮液および処理液のラインに流量
を測定する手段ＦＴｂ、ＦＴＤを設け、これらの１言月
を回収率調節計ＲＣに入力して回収率（α理液流量／供
、恰液流量）を適切に定め、回収率調節計からの出ノっ
信号により）讐縮液のラインの圧力調節弁Ｖの開度を調
節して回収率を制御し、溶液の性状が変化してｂ処理液
Ｐの性状か所定の範囲内にあるようにしたことを１う徴
とする。Structure of the Invention [Means for Solving the Problems] To explain with reference to the drawings, the radioactive waste liquid treatment method of the present invention is as shown in FIG. In the treatment method, the feed liquid F is supplied to the apparatus R10 and separated into the treated liquid P and the concentrated liquid B, the treated liquid P is discharged or used for reprinting, and the concentrated liquid B is collected and subjected to assimilation treatment, etc. Means CTf, CT for measuring the properties of the solution are installed in the supply liquid line and/or treatment liquid line, and means FTb, FTD for measuring the flow rate are installed in the lines for the concentrated liquid and treatment liquid. These values are input into the recovery rate controller RC to appropriately determine the recovery rate (α flow rate of liquid solution/supply and reagent flow rate), and the output signal from the recovery rate controller is used to reduce the recovery rate. One indication is that the recovery rate is controlled by adjusting the opening degree of the pressure control valve V in the liquid line, and the properties of the solution are changed so that the properties of the processing liquid P are within a predetermined range. do.
溶液の性状を測定する手段としてｌま、放射［」［廃液
の処理という観点から適当な因子、たとえば放射能：聞
度、電導度など８泗択し、これを正確に測定できるセン
サーを使用すればよい。 その測定結果により逆浸透膜
装置Ｒ１０の回収率をｉＩ＋Ｊ ｕ＋＋する。 １」ｌ
］御方法としては、供給液の性状を３１１１定して回収
率を制御するフィードフォワード制御、および処理液の
性状を測定して回収率を制御するフィードバック制御の
いずれでもよく、もちろんこれらを組合せた制御によっ
てもよい。As a means of measuring the properties of the solution, select appropriate factors from the perspective of waste liquid treatment, such as radioactivity, radioactivity, conductivity, etc., and use a sensor that can accurately measure these factors. Bye. Based on the measurement results, the recovery rate of the reverse osmosis membrane device R10 is expressed as iI+J u++. 1”l
] The control method may be either feedforward control, which controls the recovery rate by determining the properties of the feed liquid, or feedback control, which controls the recovery rate by measuring the properties of the processing liquid, or, of course, a combination of these. It may also be controlled.
逆浸透膜装置Ｒ／○は、圧力調節弁Ｖの操作によりその
運転を％ＩＪ ＩＩする。 圧力調節弁を閉じるはど処
理液流量が増大して濃縮液流量が減少し、回収率が高く
なる。The operation of the reverse osmosis membrane device R/○ is controlled by operating the pressure control valve V. When the pressure control valve is closed, the flow rate of the processing liquid increases and the flow rate of the concentrate decreases, increasing the recovery rate.
高い回収率で運転を行なうと、処理液流量は多くなるが
、その液性状が悪くなる。 すなわち、Ｃ）−（供給液
流量／濃縮液流■）は大きくなるが、ＤＦ（供、給液溌
度／処理液濃度）は小さくなる。When operating at a high recovery rate, the flow rate of the processing liquid increases, but the properties of the liquid deteriorate. That is, C) - (supply liquid flow rate/concentrated liquid flow rate (2)) increases, but DF (supply liquid permeability/processing liquid concentration) decreases.
逆に、回収率を低くして運転すると、ＣＦは小さくなる
が、ＤＦは大きくなる。 このように、連理液の性状は
その回収率により変化する。Conversely, when operating with a low recovery rate, CF becomes small but DF becomes large. In this way, the properties of the continuous liquid change depending on its recovery rate.
［作 用］
本発明の方法によれば、供給液または処理液のｉ生状を
測定し、性状かそれまでより悪くなった場合、たとえば
放射能澗１度が所定値を超えたときは、回収率を低くし
て運転し、装置のＤＦを大きくすることにより、処理液
の性状を常に一定に保つことができる。[Function] According to the method of the present invention, the physical condition of the supply liquid or the treated liquid is measured, and if the condition becomes worse than before, for example, if the radioactivity level exceeds a predetermined value, By operating with a low recovery rate and increasing the DF of the device, the properties of the treatment liquid can be kept constant.
一方、供給液または処理液の性状がよくなった場合には
、回収率を高くする。 装置のＤＦは小さくなるが、Ｃ
Ｆを大きくすることで、処理液性状を一定にして効率の
高い運転をすることができる。On the other hand, when the properties of the feed liquid or the treatment liquid improve, the recovery rate is increased. Although the DF of the device becomes smaller, C
By increasing F, the processing liquid properties can be kept constant and highly efficient operation can be achieved.
このように、本発明の方法によれば、供給される放射性
廃液の性状が標４（の値より悪い場合でも、設定値を満
足する処理液が得られ、また標準の値よりも良い場合に
は設定値を満足しつつ処理能力を向上させることができ
、放射性廃液の処理を経済的に行なうことかできる。As described above, according to the method of the present invention, even if the properties of the supplied radioactive waste liquid are worse than the value of standard 4, a treatment liquid that satisfies the set value can be obtained; It is possible to improve the processing capacity while satisfying the set value, and it is possible to treat radioactive waste liquid economically.
このような効果は、逆浸透１１！ｉ！装置Ｒ１０を、第
２図Ａおよび已に示すように、２段、３段と多段に接５
続して構成した場合にいっそう大きくなり、回収率の変
化に対するＤＦおよびＣＦの変化の幅を大きくすること
ができる。This kind of effect is reverse osmosis 11! i! The device R10 is connected in multiple stages such as 2nd stage and 3rd stage as shown in FIG.
If they are configured in succession, it becomes even larger, and it is possible to widen the range of change in DF and CF with respect to change in recovery rate.
［実施例１１
第２図Ｂに示す構成の３段モジュール式の逆浸透膜装置
を使用して、ヨウ化ナトリウムの溶液を下記の操作条注
で処理した。Example 11 Using a three-stage modular reverse osmosis membrane device having the configuration shown in FIG. 2B, a solution of sodium iodide was treated according to the following operating instructions.
第一段逆浸透膜装置回収率 ８５％第二段逆浸透
膜装置回収率 ３５〜８５％第三段逆浸透膜装置回収率
６０％供給液■−濃度 ３７ｐ
ｐｍすなわち、第一段および第三段の逆浸透膜装置の回
収率を一定とし、第二段での回収率を変化させ、そのと
きのＮａ ＩのＤＦおよびＣＦを求めた。1st stage reverse osmosis membrane device recovery rate 85% 2nd stage reverse osmosis membrane device recovery rate 35-85% 3rd stage reverse osmosis membrane device recovery rate 60% Feed liquid - concentration 37p
pm, that is, the recovery rates of the first and third stage reverse osmosis membrane devices were kept constant, the recovery rate of the second stage was varied, and the DF and CF of Na I at that time were determined.
結果は、第３図に示すとおりである。The results are shown in FIG.
第３図から明らかなように、第二段逆浸逍、牧装置で回
収率を変化させることにより、装置のＤ「およびＣＦが
大きく変化することがわかる。 従って、供給液の性状
に応じて回収率を変え、処理液を所望の設定値に規制す
ることができる。As is clear from Fig. 3, it can be seen that by changing the recovery rate in the second stage reverse immersion and pasting equipment, the D' and CF of the equipment change greatly. The recovery rate can be changed and the processing liquid can be regulated to a desired set value.
［実施例２］
上記と同様の３段式の逆浸透膜装置において、運転途中
で供給液のＮａＮＯ３濃度（電導型により測定）を増加
させ、これに対応して第二段逆浸透ＩＦｉｌ装置での回
収率を減少させる制御方法を実施した。 処理液濃度（
電導型）の経時変化を、供給液のそれとともに第４図に
示した。[Example 2] In a three-stage reverse osmosis membrane device similar to the above, the NaNO3 concentration (measured by the conductivity type) of the feed liquid was increased during operation, and in response to this, the second stage reverse osmosis IFil device A control method was implemented to reduce the recovery rate. Processing liquid concentration (
Figure 4 shows the change in conductivity (conductivity type) over time together with that of the feed liquid.
その結果、供給液濃度が変化した場合でも、回収率を制
御することにより、短時間で処理液の濃度が一定の値に
戻ることがわかる。 破線は、本発明によらなかった場
合の処理液の濃度変化でおる。As a result, it can be seen that even if the concentration of the supplied liquid changes, by controlling the recovery rate, the concentration of the processing liquid returns to a constant value in a short time. The broken line shows the change in concentration of the processing liquid when the present invention was not applied.
発明の効果
本発明の逆浸透法による放射性廃液の処理方法は、供給
液の性状か変化してもそれに追従して回収率を制御する
ことにより、常に一定範囲内の濃度の処理液を得ること
ができる。 従って安全を確保しつつ経済的に有利な処
理を実施することができる。Effects of the Invention The method of treating radioactive waste liquid by reverse osmosis of the present invention can always obtain a treated liquid with a concentration within a certain range by controlling the recovery rate by following changes in the properties of the supplied liquid. Can be done. Therefore, economically advantageous processing can be carried out while ensuring safety.
第１図は、本発明の処理方法を実施するための逆浸透装
置の基本的な構成の例を示すフローチャー１〜でおる。
第２図ＡおよびＢは、それぞれ２段式および３段式の逆
浸透装置の例を示ガ一部分的なフローチＶ−１・である
。
第３図は、本発明の方法の一実施例における［タト液処
理の結果を示すグラフである。
第４図は、本発明の方法の他の実施例における効果を示
すグラフて必る。１
Ｐ・・・高圧ポンプ
Ｒ１０・・・逆浸透膜装置
ＣＴｆ、ＣＴ、、ＣＴｂ・・・ｊＯ’Ｊｊ’ｌ−センザ
ーＦ−ｒ、、ｒＴｂ・・・流り見Ｉ
ＲＣ・・・回収率調節計
■・・・圧力調節弁
特許出願人 ＋’ｌ学技１１・ｊ庁［京子力局長代理
人 弁Ｊ里子 須 賀 韓 夫ＣＬ
ＣＤ
第第２八
Ａ２図Ｂ
儂殉友
第３図
斗二設ミづ訓１時２置可Ｉ−１碑［％］第４図
琶↓支
［ＪＪｓ／ｃｍ１
性通時聞 ［ｈｒ］FIG. 1 shows flowcharts 1 to 1 showing an example of the basic configuration of a reverse osmosis apparatus for carrying out the treatment method of the present invention. FIGS. 2A and 2B illustrate examples of two-stage and three-stage reverse osmosis devices, respectively, with a partial flowch V-1. FIG. 3 is a graph showing the results of Tato solution treatment in one embodiment of the method of the present invention. FIG. 4 is a graph showing the effects of another embodiment of the method of the present invention. 1 P...High pressure pump R10...Reverse osmosis membrane device CTf, CT,, CTb...jO'Jj'l-Sensor F-r,, rTb...Flow check I RC...Recovery rate Controller■...Pressure regulating valve Patent applicant +'l Academic and Technical 11 J Agency [Representative of Kyoko Riki Bureau Chief BenJ Satoko Suga Hanfu CL
CD No. 28 A2 Figure B My Martyr's Friends No. 3 Tou 2 Sei Mizuken 1:2 Placeable I-1 Monument [%] Figure 4 Wa ↓ Branch [JJs/cm1 Sex Diachronic Book [hr]
Claims (4)
理液および濃縮液に分離する処理方法において、供給液
のラインおよび（または）処理液のラインに溶液の性状
を測定する手段を設けるとともに、処理液および濃縮液
のラインに流量を測定する手段を設け、これらの信号を
回収率調節計に入力して回収率（処理液流量／供給液流
量）を適切に定め、回収率調節計からの出力信号により
濃縮液のラインの圧力調節弁の開度を調節して回収率を
制御し、供給液の性状が変化しても処理液の性状が所定
の範囲内にあるようにしたことを特徴とする逆浸透法を
用いた放射性廃液の処理方法。(1) In a treatment method in which radioactive waste liquid is supplied to a reverse osmosis membrane device and the feed liquid is separated into a treated liquid and a concentrated liquid, a means for measuring the properties of the solution is installed in the feed liquid line and/or in the treated liquid line. At the same time, a means for measuring the flow rate is installed in the processing liquid and concentrated liquid lines, and these signals are input to the recovery rate controller to appropriately determine the recovery rate (processing liquid flow rate / feed liquid flow rate), and the recovery rate is adjusted. The recovery rate was controlled by adjusting the opening of the pressure control valve in the concentrate line using the output signal from the meter, so that the properties of the treated liquid remained within the specified range even if the properties of the supplied liquid changed. A method for treating radioactive waste liquid using reverse osmosis.
特許請求の範囲第１項の処理方法。(2) The treatment method according to claim 1, which is carried out by measuring radioactivity concentration as the property of the solution.
請求の範囲第１項の処理方法。(3) The treatment method according to claim 1, which is carried out by measuring electrical conductivity as the property of the solution.
る特許請求の範囲第１項の処理方法。(4) The treatment method according to claim 1, which is carried out using a reverse osmosis membrane device in two or more stages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61197939A JPH0664187B2 (en) | 1986-08-22 | 1986-08-22 | Treatment method of radioactive waste liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61197939A JPH0664187B2 (en) | 1986-08-22 | 1986-08-22 | Treatment method of radioactive waste liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6353499A true JPS6353499A (en) | 1988-03-07 |
| JPH0664187B2 JPH0664187B2 (en) | 1994-08-22 |
Family
ID=16382807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61197939A Expired - Lifetime JPH0664187B2 (en) | 1986-08-22 | 1986-08-22 | Treatment method of radioactive waste liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0664187B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01310703A (en) * | 1988-06-09 | 1989-12-14 | Japan Organo Co Ltd | Method for controlling concentration in membrane separator |
| JPH0368426A (en) * | 1989-08-08 | 1991-03-25 | Kubota Corp | Controlling method for concentrator |
| JPH0588693U (en) * | 1992-05-19 | 1993-12-03 | 三菱重工業株式会社 | Waste liquid boric acid processor |
| JP2005147788A (en) * | 2003-11-13 | 2005-06-09 | Inst Nuclear Energy Research Rocaec | Boric acid purification and reutilization system, and method, using reverse osmosis separation method |
| WO2009057501A1 (en) * | 2007-10-29 | 2009-05-07 | Kobelco Eco-Solutions Co., Ltd. | Water treatment method, water treatment apparatus, method for recovering purified water, and purified water recovering apparatus |
| JP2009106832A (en) * | 2007-10-29 | 2009-05-21 | Kobelco Eco-Solutions Co Ltd | Water treatment method and water treatment apparatus |
| JP2009131785A (en) * | 2007-11-30 | 2009-06-18 | Kobelco Eco-Solutions Co Ltd | Purified water recovering apparatus, and method for recovering purified water |
| JP2009154070A (en) * | 2007-12-26 | 2009-07-16 | Kobelco Eco-Solutions Co Ltd | Purified water recovering apparatus and method for recovering purified water |
| JP2013158671A (en) * | 2012-02-02 | 2013-08-19 | Kajima Corp | Treatment system and treatment method for radioactive substance-containing water or radioactive substance-containing slurry |
| EP3018659A4 (en) * | 2014-01-09 | 2017-03-01 | Tsinghua University | Method and apparatus for processing radioactive wastewater |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5584586A (en) * | 1978-09-20 | 1980-06-25 | Mitsubishi Heavy Ind Ltd | Treatment of waste water |
-
1986
- 1986-08-22 JP JP61197939A patent/JPH0664187B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5584586A (en) * | 1978-09-20 | 1980-06-25 | Mitsubishi Heavy Ind Ltd | Treatment of waste water |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01310703A (en) * | 1988-06-09 | 1989-12-14 | Japan Organo Co Ltd | Method for controlling concentration in membrane separator |
| JPH0368426A (en) * | 1989-08-08 | 1991-03-25 | Kubota Corp | Controlling method for concentrator |
| JPH0588693U (en) * | 1992-05-19 | 1993-12-03 | 三菱重工業株式会社 | Waste liquid boric acid processor |
| JP2005147788A (en) * | 2003-11-13 | 2005-06-09 | Inst Nuclear Energy Research Rocaec | Boric acid purification and reutilization system, and method, using reverse osmosis separation method |
| WO2009057501A1 (en) * | 2007-10-29 | 2009-05-07 | Kobelco Eco-Solutions Co., Ltd. | Water treatment method, water treatment apparatus, method for recovering purified water, and purified water recovering apparatus |
| JP2009106832A (en) * | 2007-10-29 | 2009-05-21 | Kobelco Eco-Solutions Co Ltd | Water treatment method and water treatment apparatus |
| CN101801857A (en) * | 2007-10-29 | 2010-08-11 | 株式会社神钢环境舒立净 | Water treatment method, water treatment apparatus, method for recovering purified water, and purified water recovering apparatus |
| JP2009131785A (en) * | 2007-11-30 | 2009-06-18 | Kobelco Eco-Solutions Co Ltd | Purified water recovering apparatus, and method for recovering purified water |
| JP2009154070A (en) * | 2007-12-26 | 2009-07-16 | Kobelco Eco-Solutions Co Ltd | Purified water recovering apparatus and method for recovering purified water |
| JP2013158671A (en) * | 2012-02-02 | 2013-08-19 | Kajima Corp | Treatment system and treatment method for radioactive substance-containing water or radioactive substance-containing slurry |
| EP3018659A4 (en) * | 2014-01-09 | 2017-03-01 | Tsinghua University | Method and apparatus for processing radioactive wastewater |
| US10457573B2 (en) | 2014-01-09 | 2019-10-29 | Tsinghua University | Method and apparatus for processing radioactive wastewater |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0664187B2 (en) | 1994-08-22 |
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